A Retiree Discovers an Elusive Math Proof–and Nobody Notices Posted by melling on Sunday April 02, 2017 @10:46AM from the wired.com dept. https://www.wired.com/2017/04/elusive-math-proof-found-almost-lost/ ( 2 comments | 5 points | on HN )
IMHO, it would have been solved sooner had more people been working on it. I think only 5 or so people had or were working on it?
https://news.ycombinator.com/item?id=13977554